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N. WINBLAD. IGNITION APPARATUS FOR. INTERNAL COMBUSTION ENGINES.

APPLICATION PILEDIUALY I8, 1918.

' Patented July 25, 1922.

3 SHEETS-SHEET I.

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IGNITION APPARATUS FO/R INTERNAL COMBUSTIGN ENGINES.

(i) (Ik APPLICAIION FILED .IULY I8, I9I8.

Patented July 25,r 14922.

3 SHEETS-SHEET 2.

N. WINBLAD.

IGNITION APPARATUS FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILEDIuLY I8. 1918.'

1 ,$24,056. Patented July. 25, 1922.

3 SHEETS-SHEET 3.

Niklaus mii/21nd,

y WM 1513345 stars OF DELAWARE..

' ai?. i i? imi MnsNn ASSIGNMENTS,

NIKLAS WINBLAD, 0F STEPNEY, CONNECTICUT, ASSGNOR, BY

To THE LocoiioriLE COMPANY, orraineiiroRT, CONNECTICUT, A CORPORATIONIGNITION APPARATUS. ron INTERNAL-piccivinusTIoN ENGINES. i

Application led .Tilly 18,

nal-Combustion Engines, `of which thek folloiving description, inconnection With the.

accompanying drawings, is a specication, like characters on the drawingsrepresenting like parts. y

This invention relates to ignition apparatus for internal combustionengines, and is more especially concerned with housings for theconduct-ing Wires or cables leading to the spark plugs and groundingsvvitch.

My invention Will, be best understood by reference to the followingdescription, When taken in connection With the accompanying drawings ofone specific embodiment thereof, While its scope Will be morevparticularly pointed out in the appendedv claims.,

In the drawings: y y .v

Fig. 1 is a plan of a portion of an internl combustion engine equippedwith an ignition apparatus embodying my invention;

Fig. 2 is a side elevation of :the saine;Y

Fig. 3 is a detail plan on an enlarged scale, showing the cables andcable housing Wit-hv the upper sections of both outer and inner casingsremoved; i n

Fig. 4 isa sectional view on line 4 4 of Fig. 1;

Fig. 5 is a rear end elevation ofthe cable housingl on an enlargedscale; A

F ig, 6 is a front end elevation of the same on an enlarged scale; and

Fig. 7 is a sectional vievv o scale on line 7--7 of Fig. l. n

Referring to the dra-Wings, and to the embodiment of my invention whichisv illustrated' therein, I have shown a portion of an internalcombustion engine having. a plun an enlarged rality of cylinders, Whichmay be of any desired number, but in the present example,r I have showna monobloc motor having siX cylinders, designated respectively 10, l1,12, 13, 14 and 15, all formed. as a part of a single casting 16 providedwith a usual Water jacket 1T having a Water space 18 surrounding theseveral cylinders. This space in the present example is closed by aplate 19, Which, as Will presently appear, forms a Specification ofLetters ateiit.

atented July 25, 1922. 191s. seriaiNo. 245,489.

part of a housing for the ignition cables. This platev may y y with apassage 20`leading from the Water space 18 adjacent the frontend of themotor at a point convenient for connection to the usual radiator, notshown. The 'cylinders may be equipped with any usu-alyor'desired sparkplugs 21, 22, 23, 24, 25 and 26, to Which current maybe-supplied by anyusual or de- Y be, and is herein, providedV sired magneto or generatorhavingv a distrib` utoi" 27', conventionally represented in Fig. 1. Fromthis distributor, usual cables 28, 29,

30, 31, 32 and 83, lead to the several spark plugs.

other instruiiients'of the system., asl forv eX- yample, ausualVgrounding switch, horn' and other accessories As a means toL hold'theseveral cables in .their proper positions, and prevent injury thereto byprotecting them from Water, oil, dust and mechanical injuries, l haveprovided a novel vhousing whichy -l shall.v now describe.

n the housing selected for eXeinplification, l have provided any outercasing made up of'tvvo separable sections,.one of themy .preferablyformed as a part of the plate'19, l and the other as a1- cover 38. Thesesections,

together, .form a chamber 39, providing a convenient enclosure for'aninner casing comprising separable sections40 and 41,'in which the`various cablesmay beenclosed in any appropriate manner. .l Preferably,the cables enter the housing in a group atene side of the latter,through a bushing42 preferably formed of insulating '.inaterial, and

preferably providedl with outer kand inner I The electric apparatus mayalso include cables 34, 35, 3G and/37, connecting flanges 43 and 44,interloclted with the lateral vvall of the outer casing, asbest shown inFig. 3. Preferably, this bushing is longitudinal-ly divided, asbestshoWn in Fig. 2,v

thereby to facilitate' the introduction of the cables into suitableopenings of. the proper size to receive and hold'ithe cables firmly.

The cables 28. 29, 30, 31, 32 and 38, preferj ably emerge from thehousing .through individual bushings 45,46, 47. 48, 49 and 50,

respectively, preferably formed of suitable'y insulating material. lfdesired, these bushings also may be divided in a horizontal plane tolfacilitate the introduction and remoral of the cables, and preferablythey are flanged and: interlcclred with the lateral Wall of the casingin a manner similar to the bushing 42. So, also, the cables 34, 35, 36and 37, extend through a bushing 51, which is preferably formed ofsuitable insulating material and flanged so as to interlock with theouter casing as clearly shown at the lefthand end of Fig. 4. Thisbushing, like the others, is preferably divided in a horizontal plane,but differs therefrom in the provision of a separator 52. alsopreferably formed of insulating material interposed between the uppercables 34 and and the lower cables 36 and 37 as best shown in Fig. 5.This separator, like the bushing itself, is preferably interlocked withthe outer casing, as best shown in Fig` 3.

Preferably, the upper and lower parts 36 and 19 of the outer casing areseparated from each other by a space 53, sufficient to ermit these partsto be forced toward each other, thereby to clamp the various bushings inplace. Any suitable means may be provided to furnish the desiredclamping action, but in the present example, 1 have shown studs 54 and55, screwed into the cylinders 11and 14, respectively, and extendingthrough the inner and outer-casings, as best shown in Fig. 4. Nuts 56and 57, threaded onto said studs, serve as a means for securing theplate 19 in place to close the water rspace '18. Nuts 58 and 59,threaded onto the studs 54 and 55, respectively, serve to draw the uppersection 3S of the casing in a downward direction toward the lowersection, thereby to clamp the bushingstherebetween. Similar studs 60,61, 62, and 63, though shorter than the studs 54 and 55, are threadedinto the cylinders 10, 12, 13 and 15, respectively, and provided withnuts 64, 65, 66 and 67, to assist the nuts 56 and 57 in securing theplate 19 in place. 1t is evident that, by removing the nuts 58 and 59,the outer casing may be opened for the purpose of gaining access to thecables, but that removal of the entire casing from the cylinders can beaccomplished only by the re-k moval of the nuts 56, 57, 64, 65, 66 and67.

Referringagain to the innercasingpparts 40 and 41, the latter arepreferably grooved or channeled, as shown in Figs. 4 and 7, to receiveand snugly hold the several cables and to prevent any interferencebetween them. Preferably, the cables 30 and 31, which are in the upperpart 41, are spaced apart from the cables 32 and 33, which are in thelower part, by a separator v68, best shown in Figs. 3 and 7. Similarly,the cables 84 and 35 are separated by a similar separator 69, also shownin Figs. 3 and 7, thus preventing any possible interference or shortcircuiting. Preferably, these separators are made of appropriateinsulating material.

The inner casing parts 40 and 41 may be secured to each other and to theouter casing by clamping screws 7 0 and 71, best shown in Fig. 4,extending through both parts and threaded into lugs 72 and 73 formed onthe plate 19. Thus it is evident that when the parts 40 and 41 aresecured together, the cables are firmly held therein, and cannot beremoved or become accidentally displaced, without first removing thescrews and 71.

In order to ventilate the housing, 1 have herein provided the lateralwalls of the plate 19 with suitable apertures 74, 75, 76, 77 7 8, 79 and80, which serve to admit cool air to the chamber 39, and permit theescape of warm air therefrom. The apertures 74 and 80 are formed in thefront and rear ends respectively, of the casing, while theremainingapertures are provided in the'two sides, thus affording freepassage of the air on all sides,

While I have herein shown and described one specific embodiment of myinvention for illustrative purposes, and have disclosed and discussed indetail the construction and arrangement incidental to one specificapplication thereof, it is to be understood that the invention islimited neither to the mere details or relative arrangement of parts,nor to its specific embodiment herein shown, but that extensivedeviations from the illustrated form or embodiment of the invention maybe made, without departing from the principles thereof.

Having thus described one form of my invention, what 1 claim and desireby Letters Patent to secure is:

1. In an ignition apparatus for internal combustion engines, thecombination of a spark-plug, amable leading to said sparkplug, and adivided housing presenting a longitudinal chamber formed partly withineach division and enclosing said cable, the latter being received partlyin each division.

2. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, f a plurality of cablesleading to said spark-plugs, respectively, and a housing enclosing saidcables and comprising two separable parts presenting a chamber partly ineach for said cables, each cable having a portion of its length receivedpartly in each of said separable parts.

3. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingto said spark-plugs, respectively, and a housing enclosing said cablesand comprising a divided outer casing presenting a chamber formed partlywithin each division and an inner cable support.

4. 1n an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingto said spark-plugs, respectively, and a housing enclosing said cablesand comprising a divided outer casing and a divided inner casing.

5. ln an ignition apparatus tor internal combustion engines, thecombination ot a` plurality oli' spark-plugs, a plurality oi cablesleading to said spark-plugs, respectively, anda housing enclosing saidcables and comprisingV a divided outer casing and a divided innerfcasingprovidedwith. cableV receiving channels. 1

6. The combination `of an internal conibustion engine having a pluralityof cylinders provided with a head having a two-part chamber andentrances therein, a plurality of spark-plugs for said cylinders,respectively, and a plurality of cables disposed in said chamber andleading through said entrances to said spark-plugs, respectively.

7. The combination of an internal combustion engine having a pluralityof cylinders provided with a head having a chamber therein, a pluralityof spark-plugs for said cylinders, respectively, and a plurality ofcables disposed in said chamber and leading to said spark-plugs,respectively, said head having means providing for the cooling of saidchamber by the admission of cool air thereto andthe escape of warm airtherefrom.

8. The combination of an internalcornbustion engine having a pluralityof cylinders provided with a head having a chamber therein, a pluralityof spark-plugs for said cylinders, respectively, and a plurality ofcables disposed in said chamber and leading to said spark-plugs,respectively, one of said parts being apertured to provide for thecooling of said chamber by the admission of cool air thereto and theescape of warm air therefrom.

9. The combination of an internal cornbustion engine having a pluralityof cylinders provided withV a water-jacket space, a plurality ofspark-plugs for said cylinders, respectively, a plurality of cablesleading to said spark-plugs, respectively, and a cablehousing comprisinga casing having separable sections, having a chamber formed partly ineach, one section constitutinga closure for said water-jacket space,said cables` being housed Within said chamber.

l0. The combination of an internal combustion engine having a pluralityof cylinders provided with a water-jacket spacea plurality ofspark-plugs for said cylinders, respectively, a plurality of cablesleading to said spark-plugs, respectively,a cable-housing comprising acasing having separable' sections, one constituting a closure for saidwater-jacket space, and common means to secure said separable sectionsto each other and to said cylinders. n l

ll. The combination oit an internal combustion engine having a pluralityof cylinders provided with a water-jacket space, a

plurality of spark-plugs for said cylinders, respectively, a pluralityor, cables leading to said spark-plugs, respectively,-a cable-housingcomprising a casing having separable sections, one constituting aclosure for said water-jacket space, means to secure said separablesections to each other and to saidv cylinders, andv other means tosecure one of said sections 'to said cylinders.

l2. The combi-nation of an internal com,- bustion engine having aplurality of cylinders provided with ajwater-.j'aclret space, aplurality of spark-plugs for said cylinders, respectively, a pluralityof cables leading to said spark-plugs, respectively, a cable-housingcomprising a casing having rseparable sections, one constituting aclosure for said water-jacket space, fastening means extending from saidcylinders through one of said separable sections to secure the samethereto, and fastening means extending from said cylinders through both4sections to secure the same to each other and to said cylinders.

13. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingthereto, a longitudinally divided casing through which said cablesextend, and busings through which said cables lead into said casing,said bushings being received between the divisible parts of' saidcasing.

14E. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingthereto, a longitudinally divided casing through which said cables yeX-tend, bushings through which said cables lead into said casing,'andmeans to cause said casing to clamp said bushings in place.

l5. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingthereto, a longitudinally divided casing through which said cablesextend, and divided bushings through which said cables lead into saidcasing.

16. In an ignition apparatus for internal combustion engines, thecombination of a plurality of spark-plugs, a plurality of cables leadingthereto, a divided enclosure for said cables, and ylongitudinallydisposed separating means distinct from said enclosure and interposedbetween said cables.

bles leading to said spark-plugs, and a longitudinally divided housinghzwing` a cableieoeiying chamber und one oiA more entrances inteiseetedby the line or plane of division.

19. ln an ignition apparatus for internal combustion engines, thecombination of it pluality of spark-plugs, zi plurality of Cablesleading to said spark-plugs, und a housing` eomprising two partsenclosing seid cables and providing e cable-receiving chainber and oneoi1 more entrances formed partly in each.

20. In an ignition apparatus for inteinal Certicate of Correction. It ishereby certied that in Letters Patent No. 1,424,056, granted July 25,1922,

i upon the application of Niklas VVinblafLof Stepney, Connecticut, foran improvement in Ignition Apparatus for Internal-Combustion Engines,77errors appear in the printed specification requiring correction asfollows: Page 2, line 105, claim 1, before tbe Word divided insert theWord Zoffzgz'udz'aalh, and line 106, strike out the word longitudinalpage 3, line 95, claim 13, for the misspelled Word busings readAbushings; and that the said Letters Patent should be` read with thesecorrections therein that the same may conform to the record of the casein the Patent Ofice. i i l Signed and sealed this 19th day oi September,A. Di., 1922.

[SEAL] WM. A. KINNAN,

Acting, ommz'ssz'oner of Patents.

